128923 is an odd 6-digits prime number following 128922
and preceding 128924 . In scientific notation, it is written as 1.28923 × 10^5.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 128922 positive integers (up to 128923) that are relatively prime to 128923.
128923 has 2 divisors, whose sum is 128924
The reverse of 128923 is 329821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 25
Digital Root 7
Name
one hundred twenty-eight thousand nine hundred twenty-three
Scientific notation
1.28923 × 10^5
Engineering notation
1.28923 × 10^3
Prime Factorization
128923
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
128923
Product of the distinct prime numbers
The prime factorization of 128923 is 128923.
Since it has a total of 1 prime factors.
7 , 5 , 19 , 77 , 540 , 63 , 7817 , 6017 , 60188 , 38487 , 270026 , 509360 , 2363063 , 6934710 , 56335621 , 87422098 , 997744487 , 237143338 , 9110788877 , 7120582167
n×2
257846
n×3
386769
n×4
515692
n×5
644615
n÷2
64461.5
n÷3
42974.333333333
n÷3
32230.75
n÷5
25784.6
n2
16621139929
n3
2142847223066467
n4
2.762622925394E+20
n5
3.5616563541057E+25
2 √n
359.05849105682
3 √n
50.517688147512
4 √n
18.948838778585
5 √n
10.521219484601
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
128924
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
64462
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
359.0598835849
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999844869846
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128923 can be divided by 2 positive divisors.
The sum of these divisors (counting 128923) is 128924, the average is 64462.
Base
System
Value
2
Binary
11111011110011011
3
Ternary
20112211221
4
Quaternary
133132123
5
Quinary
13111143
6
Senary
2432511
8
Octal
373633
10
Decimal
128923
12
Duodecimal
62737
16
Hexadecimal
1f79b
20
Vigesimal
g263
36
Base36
2rh7
md5
6668f26729f9ef5caf2df76cd65e4cbe
sha1
49703f61af803ffe22649cd61e549c67971b7e8b
sha256
d3d846a672e09f0b6a852f7835d05ca9c031f84b5e24bf81eefc33949f14d2cf
sha512
601006a5dedda7add3903805bf340a5658bf12c7c4b16fb681bcad42754cb79c0ad81fdb068773040f249d0872c33b3474aff25428cd17648e4017f99d8a2634
ripemd-160
2b849c03320b137921bb2e60ec6efd406f20d24b
Diameter
257846
Circumference
810047.09935751
Area
52216851095.234
Volume
8.9759374583345E+15
Surface area
208867404380.94
Circumference
810047.09935751
Perimeter
515692
Area
16621139929
Diagonal
182324.65510183
Surface area
99726839574
Volume
2142847223066467
Space diagonal
223301.1862642
Perimeter
386769
Area
7197164709.1849
Altitude
111650.5931321
Surface area
7197164709.1849
Volume
2.5253696707951E+14
Height
60774.885033942